中华人民共和国国家环境保护标准HJ893-2017水质挥发性石油烃(C6-C9)的测定吹扫捕集/气相色谱法Water quality–Determination of volatile petroleum hydrocarbons(C6-C9)–Purge and trap / gas chromatography（发布稿）本电子版为发布稿请以中国环境出版社出版的正式标准文本为准2017-12-21发布2018-02-01实施发布环境保护部目次前言.................................................................................................................................................ii1适用范围.......................................................................................................................................12规范性引用文件...........................................................................................................................13术语和定义...................................................................................................................................14方法原理.......................................................................................................................................15试剂和材料...................................................................................................................................26仪器和设备...................................................................................................................................27样品...............................................................................................................................................38分析步骤.......................................................................................................................................39结果计算与表示...........................................................................................................................510精密度和准确度.........................................................................................................................511质量保证和质量控